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Learn how to use statements like if, if-else, switch, for, and while to declare variables and specify expressions, make decisions, iterate over statements, and more.
Command line wizardry, part two: Variables and loops in Bash Learn to process thousands of items reliably and repeatably in this installment.
The "Understanding Java threads" series concludes by uncovering some of the loose ends of threading: thread groups, volatility, thread-local variables, timers, and thread death.